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Hyeon Hwang

4 accepted papers

2025

Assessing LLM Reasoning Steps via Principal Knowledge Grounding

EMNLP 2025

Step-by-step reasoning has become a standard approach for large language models (LLMs) to tackle complex tasks. While this paradigm has proven effective, it raises a fundamental question: How can we verify that an LLM’s reasoning is accurately grounded in knowledge? To address this question, we intr

2025

Outlier-Safe Pre-Training for Robust 4-Bit Quantization of Large Language Models

ACL 2025long

Extreme activation outliers in Large Language Models (LLMs) critically degrade quantization performance, hindering efficient on-device deployment. While channel-wise operations and adaptive gradient scaling are recognized causes, practical mitigation remains challenging. We introduce **Outlier-Safe…

Cited by 0SourcePDFScholar
2025

Rationale-Guided Retrieval Augmented Generation for Medical Question Answering

NAACL 2025long

Large language models (LLM) hold significant potential for applications in biomedicine, but they struggle with hallucinations and outdated knowledge.While retrieval-augmented generation (RAG) is generally employed to address these issues, it also has its own set of challenges: (1) LLMs are vulnerabl…

2024

CompAct: Compressing Retrieved Documents Actively for Question Answering

EMNLP 2024main

Retrieval-augmented generation supports language models to strengthen their factual groundings by providing external contexts. However, language models often face challenges when given extensive information, diminishing their effectiveness in solving questions. Context compression tackles this issue…